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Synology RT6600ax default password & login IP

The Synology RT6600ax has no default password — you set one the first time you configure it at http://192.168.1.1.

For regaining access to a router you own or administer. If you didn't set it up, ask whoever did.
Login address
http://router.synology.com
Gateway IP
192.168.1.1
Username
— none —
Password
— no default —

You create this password the first time you set up the router. If you never changed it, factory-reset and set a new one.

No default password ships on the RT6600ax. SRM forces you to set the administrator account during setup, so credentials are user-created. Avoid reusing 'admin'/'root' as the username per Synology's own guidance.

Factory reset

Connect by Ethernet, or join WiFi SSID Synology_(Serial) with password 'synology'. Browse to http://router.synology.com (or http://192.168.1.1:8000) and complete the SRM wizard, which prompts you to create your own administrator account. To reset, hold the RESET button ~4 seconds (soft: network/password) or ~10 seconds (full factory reset) until it reboots.

More Synology models

Source: Synology — RT6600ax Hardware Installation Guide (PDF)verified · updated 2026-09-07

FAQ

What is the default password for the Synology RT6600ax?
The Synology RT6600ax has no default password — you set one the first time you configure it at http://192.168.1.1.
What is the default login IP for the Synology RT6600ax?
The Synology RT6600ax default login IP is 192.168.1.1 — open http://192.168.1.1 in a browser on the router's own network.
How do I factory-reset the Synology RT6600ax?
Connect by Ethernet, or join WiFi SSID Synology_(Serial) with password 'synology'. Browse to http://router.synology.com (or http://192.168.1.1:8000) and complete the SRM wizard, which prompts you to create your own administrator account. To reset, hold the RESET button ~4 seconds (soft: network/password) or ~10 seconds (full factory reset) until it reboots.

Verification history (56)

Every time we've checked this model's default credentials, oldest first — including when nothing changed. Absence of change over time is itself the evidence.

  1. 2026-07-13First verified· set-on-setup
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  2. 2026-07-14Re-verified, unchanged· set-on-setup
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  3. 2026-07-14Re-verified, unchanged· set-on-setup
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  4. 2026-07-15Re-verified, unchanged· set-on-setup
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  5. 2026-07-20Re-verified, unchanged· set-on-setup
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  6. 2026-07-27Re-verified, unchanged· set-on-setup
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  7. 2026-07-27Re-verified, unchanged· set-on-setup
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  8. 2026-07-27Re-verified, unchanged· set-on-setup
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  9. 2026-07-27Re-verified, unchanged· set-on-setup
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  10. 2026-07-27Re-verified, unchanged· set-on-setup
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  11. 2026-07-27Re-verified, unchanged· set-on-setup
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  12. 2026-07-27Re-verified, unchanged· set-on-setup
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  13. 2026-07-27Re-verified, unchanged· set-on-setup
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  14. 2026-07-27Re-verified, unchanged· set-on-setup
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  15. 2026-07-27Re-verified, unchanged· set-on-setup
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  16. 2026-07-28Re-verified, unchanged· set-on-setup
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  17. 2026-07-28Re-verified, unchanged· set-on-setup
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  18. 2026-07-29Re-verified, unchanged· set-on-setup
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  19. 2026-07-29Re-verified, unchanged· set-on-setup
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  20. 2026-07-29Re-verified, unchanged· set-on-setup
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  21. 2026-07-29Re-verified, unchanged· set-on-setup
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  22. 2026-07-29Re-verified, unchanged· set-on-setup
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  23. 2026-07-30Re-verified, unchanged· set-on-setup
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  24. 2026-07-30Re-verified, unchanged· set-on-setup
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  25. 2026-07-30Re-verified, unchanged· set-on-setup
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  26. 2026-07-30Re-verified, unchanged· set-on-setup
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  27. 2026-07-30Re-verified, unchanged· set-on-setup
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  28. 2026-07-31Re-verified, unchanged· set-on-setup
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  29. 2026-08-02Re-verified, unchanged· set-on-setup
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  30. 2026-08-04Re-verified, unchanged· set-on-setup
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  31. 2026-08-04Re-verified, unchanged· set-on-setup
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  32. 2026-08-07Re-verified, unchanged· set-on-setup
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  33. 2026-08-08Re-verified, unchanged· set-on-setup
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  34. 2026-08-09Re-verified, unchanged· set-on-setup
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  35. 2026-08-10Re-verified, unchanged· set-on-setup
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  36. 2026-08-10Re-verified, unchanged· set-on-setup
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  37. 2026-08-10Re-verified, unchanged· set-on-setup
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  38. 2026-08-10Re-verified, unchanged· set-on-setup
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  39. 2026-08-10Re-verified, unchanged· set-on-setup
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  40. 2026-08-10Re-verified, unchanged· set-on-setup
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  41. 2026-08-12Re-verified, unchanged· set-on-setup
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  42. 2026-08-12Re-verified, unchanged· set-on-setup
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  43. 2026-08-16Re-verified, unchanged· set-on-setup
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  44. 2026-08-17Re-verified, unchanged· set-on-setup
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  45. 2026-08-17Re-verified, unchanged· set-on-setup
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  46. 2026-08-17Re-verified, unchanged· set-on-setup
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  47. 2026-08-24Re-verified, unchanged· set-on-setup
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  48. 2026-08-24Re-verified, unchanged· set-on-setup
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  49. 2026-08-27Re-verified, unchanged· set-on-setup
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  50. 2026-08-31Re-verified, unchanged· set-on-setup
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  51. 2026-08-31Re-verified, unchanged· set-on-setup
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  52. 2026-09-04Re-verified, unchanged· set-on-setup
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  53. 2026-09-04Re-verified, unchanged· set-on-setup
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  54. 2026-09-06Re-verified, unchanged· set-on-setup
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  55. 2026-09-06Re-verified, unchanged· set-on-setup
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  56. 2026-09-07Re-verified, unchanged· set-on-setup
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